Turns out that Photos does pretty sophisticated library management; enough so that you're not duplicating space if you're migrating from iPhoto or Aperture. If you've migrated an existing iPhoto or Aperture photo library to Photos, Photos creates a brand new library structure but doesn't, in point of fact, duplicate your images. Instead it creates links to the original and preview versions of your images.
- Mac Migration Library System
- Windows To Mac Migration Assistant
- Mac Photo Library Migration
- How To Use Migration Assistant Mac
May 07, 2019 Here's how to transfer iTunes library to a new computer without the need to download extra software or go through hours of repetitive tasks. Aug 25, 2011 Apple Footer. This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the.
When you're looking at your Photos library in the Finder, it includes all of your original images and previews. But the images exist only in one location on your hard drive, even if you have multiple photo libraries.
Jan 12, 2020 You can access the hidden Library folder without using Terminal, which has the side effect of revealing every hidden file on your Mac. This method will only make the Library folder visible, and only for as long as you keep the Finder window for the Library folder open. All library services for students, faculty and staff will continue online. This shift to online-only will remain in place until at least April 7th, but could change based on any new developments. Please visit the Library’s COVID-19 response web page for more information regarding Library services. Nov 21, 2019 Migration Assistant enables you to move content on old Mac/PC to a new Mac. ITunes library, all documents, apps, user accounts and settings are included. Here take Mac to Mac transfer as an example. On new Mac, open Migration Assistant in the Utilities folder of your Applications folder.
Here's what Apple has to say for people anxious to pull the delete trigger:
After you migrate your iPhoto or Aperture library to Photos, you might feel tempted to delete your original iPhoto or Aperture library. Because the migrated library takes little additional space, you don't need to delete the original library.
So don't do it, even if you're tempted to.
Mac Migration Library System
You can still use your original photo library with iPhoto (version 9.6.1, as of this writing) and Aperture (version 3.6) after you've migrated it to Photos. Just bear in mind that any changes you make in iPhoto or Aperture will be resident only in those applications, not Photos. So if you make new image edits in Aperture or create a new iPhoto album, those will only appear in their respective apps, not Photos.
(Hat tip: Dave Sanderson)
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Mac Photo Library Migration

How To Use Migration Assistant Mac
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